get_selection_properties
AI agents call get_selection_properties to retrieve information from Mcp Score without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears designed to retrieve properties of selected musical notation elements without modifying them. The absence of verbs like 'set', 'update', 'delete', or 'create' in the name, combined with the 'get_' prefix, indicates a read operation. Even within a music notation context where some tools perform live manipulation, this specific tool's name suggests it only queries state.
From the tool's definition Tool name 'get_selection_properties' indicates a retrieval operation. The 'get_' prefix and 'properties' noun are consistent with querying/reading data about selected notation elements.
Documented attack patterns abuse exactly the kind of access get_selection_properties gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Score, and nothing reaches the server without passing your rules. This is the rule we recommend for get_selection_properties:
{
"version": "1",
"default": "deny",
"tools": {
"get_selection_properties": {}
}
}get_selection_properties is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_selection_properties. It is categorised as a Read tool in the Mcp Score MCP Server, which means it retrieves data without modifying state.
Register the Mcp Score MCP server in PolicyLayer and add a rule for get_selection_properties: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Score. Nothing to install.
get_selection_properties is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_selection_properties rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_selection_properties. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_selection_properties is provided by the Mcp Score MCP server (tskovlund/mcp-score). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Score, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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18 Mcp Score tools catalogued and risk-classified — across an index of 43,000+ MCP servers.